Compatibility: It can connect to for or for with iOS version 11 and above, Android Tablets and PC. Support various software, such as iBooks, , WPS, PDF, , Piascore, Forscore etc. With built-in rechargeable battery and can be used for about 60 hours after full charge. Five Page Turning modes: It works like wireless keyboard, Up & Down, left and right, up and down, left and right mouse buttons, space and enter. Foot-controlled: This Page Turner can free your hands when you are reading on devices with IOS, Android and Windows system, It can turn page of sheet music in the music app through the left and right pedal and also free your hands when you are reading E-book or browse pictures on the phone. Colour:Black Material:ABS Plastic Size:18x12x2.6cm Package Contents: 1 * Bluetooth page turner Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.